Device to be applied to anesthetic tubes



Oct. 12, 1954 J. FERREIRA 2,691,371

DEVICE TO BE APPLIED TO ANESTHETIC TUBES Filed Nov. 19, 1951 BY M \gwmm ATTORN EY Patented Oct. 12, I954 2,691,371 DEVICE TO BE APPLIED TO ANESTHETIC TUBES Jorge Ferreira, Sao Paulo, Brazil Application November 19, 1951, Serial No. 257,060

The present invention relates to a new and useful device applicable in administering anesthesia, principally in the local form.

It is general knowledge that heretofore anesthetic vials were equipped with a nozzle and a spring operated valve at the nozzle for controlling the flow of the anesthetic. The valve is conventional and the nozzle appropriately tapped to accommodate the valve. The difiiculty with such anesthetic vials arises because there are no means provided for precisely controlling the application of local anesthetic without the danger of excessive liquid losses, too general application of the anesthetic, and resultant smothering of the patient.

It is therefore the object of this invention to provide a device upon which may be mounted an anesthetic vial in order that doctors and technicians may apply local anesthetics in a quicker, safer, and more efficient way to areas where it is awkward to use the conventional anesthetic vials directly.

In the drawing:

Figure l is a side elevation of the anesthetic applicator.

Figure 2 is a perspective showing the anesthetic applicator in use.

Referring more particularly to the drawing, a cylindrical stem i is provided which serves as a handling means. Substantially near the end of the cylindrical stem l, a bracket 2 is attached. The bracket 2 is fixedly attached to the stem i at one end and is provided with an orifice at its other end to accommodate an anesthetic vial 3.

The anesthetic vial 3 is removably attached to the bracket by means of its nozzle t with the extension of said nozzle 4 through the opening or orifice provided in the bracket 2. At the bracket 2 and over the extension of the nozzle 4 a flexible tube 5, of rubber or any other suitable flexible liquid conductor, is removably provided. The flexible tube 5 constitutes a conducting means for the liquid anesthetic. From the bracket 2, and connected to the extension of the nozzle 4, the tube 5 describes a parabola and its other end is removably attached in a passageway provided through the stem l somewhat above the attachment of the bracket 2, constituting communicating means to and through the metal conduit 6 inserted in the end of the stem I, said conduit 8 being in the form of a hollow extension of the stem I and coaxially attached thereto. At the end of said metallic conduit 6, remote from the stem 1, an atomizing head I is provided. The atomizing head 7 shown in Fig. 1 is for repre- 2 Claims. (Cl. 128-173) 2 sentational purposes only and it is understood that such atomizing head I may be varied in form and design to suit the particular area to be anesthetized. The atomizing head 'i is removably attached to the conduit 6 in any suitable manner, a slip fit being the preferred embodiment indicated in the drawing, Fig. 1, although any other conventional mode of attachment such as a threaded connection might be substituted. The particular atomizing head 7 is adapted for use in fittin about the gum of a dentists patient. Oppositely mounted from the bracket 2 and attached to the stem l is a lever mount upon which is pivotally connected a valve actuating lever 8. The lever 8 is provided with a handle 9 on its lower-end and on its other end is provided valve operating means. A spiral type spring I 0 operating against the lever 8 urges the handle end of the lever 8 outwardly pushing the valve end of said lever 8 downward so that the valve H inside the rubber tube 5 is held normally closed. The valve i l, situated inside the tube 5, is located near the connection of the tube 5 with the stem I and registers upon the position of the upper end (as,

shown in Fig. 1) of the lever 8.

In operation, the technician, dentist or doctor attaches a conventional anesthetic vial 3 containing anesthetic liquid to the stem l by means of the bracket 2 and connects the flexible tube 5 to the extension of the anesthetic vial at the bracket. An atomizing head I is selected to'correspond in shape to the part desired to be anesthetized. The atomizing head 1 is attached to the conduit 5 and by grasping the stem l the technician, dentist, or doctor can fit the atomizing head 7 conveniently about the part to be anesthetized. By pressing down on the lever B, at the handle side, the valve H is opened and the liquid anesthetic moves from the anesthetic vial 3 through the tube 5 and conduit 6, to be atomized as it is emitted through the atomizing head i reaching the part sought to be anesthetized without any attendant loss of anesthetic and with a minimum of danger to the patient.

Various other modifications in the construction and design of the device as herein described and illustrated will be immediately apparent to those skilled in the art, but it is to be understood that the invention is to be limited only by the spirit and scope of the appended claims.

I claim:

1. In a new device for the utilization of anesthetic vials for local anesthesia, the combination including: a cylindrical stem; a bracket attached to said stem for removably supporting an anesthetic vial; a flexible tube for attaching at one end to the extension of said vial at said bracket and attached at its other end to a passageway in said stem; a tubular metallic conduit constituting an extension of said stem and communicating through said passageway to said flexible tube; and a removable atomizing head upon the end of said conduit.

2. In a new device for the utilization of anesthetic vials for local anesthesia, the combination including: a cylindrical stem; a bracket attached to said stem for removably supporting an anesthetic vial; a flexible tube for attaching at one end to the extension of said vial at said bracket and attaching at the other end to a passageway in said stem; a lever mount upon said stem; a g

lever pivotally upon said mount; a spring urging the handle portion of said lever outwardly so as to normally close valve means within said flexible tube; a tubular metallic conduit constituting an extension of said stem and communicating through said passageway to said flexible tube; and a removable atomizing head upon the end of said conduit.

References Cited in the flle of this patent UNITED STATES PATENTS Number Name Date 662,658 Sterne Nov. 2' 1 00 811,864 Moore Feb. 6, 1906 2,258,863 Reynolds Oct. 14, 1941 

